The Golden Number (also called Phi) is an important number. It is present in nature proportions such as in shells or in pine cones.
Greeks first used this number in buildings because they thought it was the beautiness number so, if the buildings proportions were based on Phi number, the construction would be beautyful as well. Buildings such as in the Partenon.
Since Greeks, Phi number became more used in other countrys in architecture (As in Eiffel thower) but also in paintings as in "A Venus Birth" or in "La Gioconda"
THE BIRTH OF A VENUS
ILLÁN RIESTRA NAVA 3ºA